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Finding the Fourth Proportional to 167,987.68, 251,982.02 and 115,237.24

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Solution

The fourth proportional to 167,987.68, 251,982.02 and 115,237.24 is: 172,856.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,987.68 : 251,982.02 = 115,237.24 : x
  2. Step 2: Convert to fraction form
    167,987.68/251,982.02 = 115,237.24/x
  3. Step 3: Cross multiply
    167,987.68x = 251,982.02 × 115,237.24
  4. Step 4: Simplify right side
    167,987.68x = 29,037,712,514.42
  5. Step 5: Solve for x
    x = 29,037,712,514.42/167,987.68
  6. Step 6: Final answer
    x = 172,856.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.